Solves Real World Problems, Digitally.
I'm Genrey, a full-stack developer focused on practical products—from clinic management systems to AI-assisted platforms. I enjoy turning complex requirements into clean, maintainable solutions and helping teams ship with confidence.
Experience
Working as a Fullstack Engineer at Eastwest
- Work alongside the Corporate Dev Team in Developing Solutions
Collaborated with cross-functional teams to create and maintain web applications that enhance user experience and drive business growth.
- Work closely with developers, product managers and other team members and participate in design reviews.
- Develop and ensured that the UI is responsive and works seamlessly across different devices and browsers.
- Wrote automation scripts to streamline repetitive tasks and improve efficiency in the department.
J'5 Pharmacy
Software Developer (Contract)
June 2025 - Dec 2025
J'5 Pharmacy
- Engineered a real-time price monitoring tool using Puppeteer and Express.js, eliminating the need for manual data scraping and reducing operational costs related to external market research by ~90%
- Developed a custom inventory management system that synchronized stock levels with sales.
- Developed scripts & database management for transitioning from excel database to MySQL Database
Performed maintenance & updates for UCC's CS Website
- Ensured maintenance of the CS Website
- Created a global css file to ensure color consistency
- Created technical documentation for the future maintainer of the website. Ensured that the documentation covers the technical aspects of the system
Jimirene Maternity Clinic
Fullstack Developer (Contract)
Aug 2024 - July 2025
Developed a digital portal for PhilHealth form completions
- Spearheaded a team of 5 to architect a Clinic Management System using Spring Boot and Electron, reducing PhilHealth claim processing time by an estimated ~80% via intelligent form auto-population.
- Implemented a "single-entry, multi-populate" architecture, ensuring data consistency across multiple regulatory PhilHealth forms and eliminating manual transcription errors
Testimonies
Recommendation LetterBureau of Animal Industry
The Bureau of Animal Industry (BAI) issued a formal endorsement on February 5, 2026, for the "Regulatory Compliance Verification System (RCV)" developed by a team of students from the University of Caloocan City, including Genrey O. Cristobal. The project, which was successfully turned over on January 15, 2026, received high praise for exceeding requirements by integrating advanced technologies like blockchain and AI-powered automation to streamline inspection processes and data analytics. Commended for their exceptional technical skills and ability to solve complex regulatory challenges under a short deadline, the development team created a tool that is now considered a vital asset for the Bureau's regulatory officers. The endorsement is officially noted by the BAI’s Information and Communication Technology Unit and the Animal Feeds, Veterinary Drugs and Biologics Control Division, signifying the system's successful implementation and high-level recognition.
Certificates & Qualifications
Let's collaborate
Interested in working together?
If my background and certifications align with your needs, let’s connect and discuss your project.
.NET Core
Docker
Express.js
Flutter
GraphQL
Java.NET CoreDockerExpress.jsFlutterGraphQLJava.NET CoreDockerExpress.jsFlutterGraphQLJava
Next.js
Node.js
Sanity
Spring Boot
TailwindCSS
XM CloudNext.jsNode.jsSanitySpring BootTailwindCSSXM CloudNext.jsNode.jsSanitySpring BootTailwindCSSXM Cloud
Recent Posts
These 7 blog posts are just my opinions, experience and thoughts
Gallery
“To my Family and Friends, the purpose on why we should excel.”
